1. Bennett, E. B. 1977. Retention of nitrogen and phosphorus in lakes. Canada Centre for Inland Waters, Burlington, Ont. (unpublished ms.).
2. International Great Lakes Levels Board. 1973. Regulation of Great Lakes water levels. App. B. Lake regulation. Corrdinated basic data. Vol. 2, I. J. C., Windsor, Ontario.
3. International Joint Commission. 1976. The waters of Lake Huron and Lake Superior, Vol. 1. Summary and recommendations. Windsor, Ont.
4. Great Lakes hydrology by months, 1946-1965;Jones;Internat. Assoc. Great Lakes Res.,1972
5. Evaporation from large deep lakes;Morton;Water Resources Res.,1967